Instruction manual

86c_Wartung en bedingt.fm, 02.04.2008 P1885E/EN 2008-04 17
Maintenance
6
1. Remove the threaded pin 15 and ball 14.
2. Remove the O-ring 12 and sleeve 13.
3. Align the output drive and claw as shown in the illustration, see 6.2 Activating the reserve
oil, page 15.
4. Rotate the equalizing piston 11 clockwise as far as it will go until X = 0 (starting point).
5. Unscrew the equalizing piston 11 counterclockwise by 1,0 turns (reserve oil volume).
6. Connect the pulse unit 8 to the quick disconnect coupling 5 using the adapter.
7. Close the shut-off valve 7.
8. Set the working pressure to approx. 73 psi (500 kPa).
9. Slowly open the shut-off valve 7 all the way until the
gauge shows a negative pressure of –13 psi (–90 kPa).
10. Wait approx. 2 minutes until the number of vacuum bubbles has reduced significantly.
11. Close the shut-off valve 7 slowly. The gauge shows atmospheric pressure again. Missing oil
is pushed into the pulse unit 8 .
12. Repeat steps 8 through 11 if necessary until the number of bubbles approaches zero.
13. Uncouple pulse unit 8, unscrew the adapter and add a couple of drops of oil using the injec-
tor.
14. Mount the ball 14 and screw the threaded pin 15 into place (0.75+0.25 ft lbf, or 1 +0.3 Nm).
15. Turn the equalizing piston 11 another 2,5 turns counterclockwise, or slightly more if neces-
sary, until the sleeve 13 can be inserted (oil compensation volume).
16. Install the sleeve 13 and O-ring 12.
NOTE
Small air bubbles that become visible due to the high pressure during filling do not mean that the
pulse unit is leaking.
The filling process is not impaired.